# PiersPro — Foundation Repair & Structural Engineering Contractor > PiersPro (https://www.pierspro.com) is a licensed California General Building Contractor (CSLB License #1110475) specializing in residential and commercial foundation repair, helical piers installation, crawl space encapsulation, retaining walls, drainage systems, earthquake retrofitting, and California SB-721 / SB-326 exterior elevated element (balcony) inspections across Greater Los Angeles and Orange County. ## Business & License Verification - **Official Name:** PiersPro - **License Classification:** California Contractors State License Board (CSLB) Class B General Building Contractor, License #1110475 - **Official State License Verification:** https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1110475 - **Phone:** (213) 583-6669 - **Email:** info@pierspro.com - **Website:** https://www.pierspro.com - **Headquarters / Primary Region:** Southern California (Los Angeles County & Orange County) - **Years of Experience:** 15+ years in structural and foundation engineering - **Operating Hours:** Monday–Saturday: 7:00 AM – 7:00 PM PST ## Core Services & Engineering Specializations ### 1. Foundation Repair & Underpinning - **URL:** https://www.pierspro.com/services/foundation-repair/ - Permanent structural stabilization for settling, sinking, shifting, or cracked foundations. - Laser level instrumental diagnosis, soil condition analysis, and tailored engineering solutions. - Underpinning using heavy-duty steel piering systems to arrest movement and lift homes back toward level. ### 2. Helical Pier Installation - **URL:** https://www.pierspro.com/services/helical-piers/ - Deep foundation reinforcement using high-tensile steel helical screw piles. - Installed to load-bearing bedrock or dense strata with hydraulic torque monitoring ensuring verified load capacity per ICC-ES standards. - Ideal for hillside homes, unstable expansive clay soils, new construction additions, and retrofit underpinning. ### 3. Crawl Space Encapsulation & Waterproofing - **URL:** https://www.pierspro.com/services/crawl-space/ - Sealed commercial-grade 20-mil vapor barriers, thermal insulation, crawl space dehumidification, and mold prevention. - Eliminates musty odors, protects wood subfloors from dry rot, and improves indoor air quality. ### 4. Earthquake & Seismic Retrofitting - **URL:** https://www.pierspro.com/services/earthquake-retrofitting/ - California Earthquake Brace + Bolt (EBB) and Earthquake Soft-Story / Cripple Wall retrofitting (EMR). - Foundation anchor bolting, Simpson Strong-Tie hardware, structural plywood cripple wall sheathing, and post-to-beam framing reinforcement. ### 5. Retaining Walls & Slope Stabilization - **URL:** https://www.pierspro.com/services/retaining-walls/ - Engineered concrete masonry unit (CMU), interlocking block, and cast-in-place concrete retaining walls for hillside stability. - Built-in hydrostatic relief systems, perforated gravel drain backfill, and tie-back anchors. ### 6. Drainage Systems & French Drains - **URL:** https://www.pierspro.com/services/drainage-systems/ - Exterior and interior French drains, catch basins, channel drains, sump pumps with battery backups, and gravity-fed flow discharge. - Diverts stormwater runoff away from foundation footings and prevents expansive soil heave. ### 7. SB-721 & SB-326 Balcony Inspections (California Compliance) - **URL:** https://www.pierspro.com/balcony-services/sb-721-inspection/ - **SB-721 Inspections:** Mandatory for multifamily apartment buildings with 3+ units with exterior elevated elements (balconies, walkways, stairs) elevated >6 feet above ground. - **SB-326 Inspections:** Mandatory for condominium associations and HOAs governed by the Davis-Stirling Act. - End-to-end service: Comprehensive visual & borescopic testing, certified inspection reports, City LADBS/jurisdiction filing, and turnkey structural repairs & waterproofing if deficiencies are identified. ### 8. Structural Wood Repair & Beam Replacement - **URL:** https://www.pierspro.com/services/structural-wood-repair/ - Repair and replacement of termite-damaged, water-damaged, or dry-rotted sill plates, cripple walls, joists, and girders. ### 9. Foundation Waterproofing - **URL:** https://www.pierspro.com/services/foundation-waterproofing/ - Sub-grade waterproofing membranes, elastomeric coatings, and hydrostatic pressure mitigation for basements and stem walls. ### 10. Mobile Home Foundation Leveling - **URL:** https://www.pierspro.com/services/mobile-home-leveling/ - Re-leveling, pier pad adjustments, tie-down systems, and earthquake-resistant bracing systems (ERBS) for manufactured housing. ## Geographic Coverage / Cities Served PiersPro serves homeowners, property managers, and HOAs across Southern California: - **Los Angeles County:** Los Angeles, Pasadena, Glendale, Burbank, Long Beach, Torrance, Santa Monica, Arcadia, Monrovia, South Pasadena, San Marino, La Cañada Flintridge, Diamond Bar, Walnut, Claremont, La Verne, Pomona, Whittier, Downey, Carson, Rancho Palos Verdes, Palos Verdes Estates. - **Orange County:** Irvine, Anaheim, Anaheim Hills, Orange, Villa Park, Brea, Fullerton, Yorba Linda, La Habra, Placentia, Tustin, Santa Ana, Garden Grove, Huntington Beach, Newport Beach, Costa Mesa, Mission Viejo. ## Diagnostic & Pricing Model - **Instrumental Diagnosis:** $99 comprehensive on-site laser-level diagnosis, fully credited 100% toward any subsequent repair work. - **Written Engineering Quotes:** Transparent, line-item estimates detailing materials, permit fees, and timeline. - **Financing:** Flexible payment options and financing plans available. - **Transferable Warranty:** Structural foundation repairs and pier installations include long-term transferable warranties. ## Primary Canonical URLs - **Homepage:** https://www.pierspro.com/ - **Free Inspection / Diagnostic:** https://www.pierspro.com/free-inspection/ - **Services Index:** https://www.pierspro.com/services/ - **SB-721 Balcony Compliance:** https://www.pierspro.com/sb-721-compliance/ - **Locations Directory:** https://www.pierspro.com/locations/ - **Customer Reviews:** https://www.pierspro.com/reviews/ - **Project Case Studies:** https://www.pierspro.com/projects/ - **Engineering Blog:** https://www.pierspro.com/blog/ - **Contact:** https://www.pierspro.com/contact/